The act of putting your hand behind your back in between your legs and jacking off; After you cum you shake your dick like an elephants trunk and screaming.
Me: Why didn't Ben come to school today?
Friend: He was Elephanting all night yesterday.
when you are smoking weed with two pipes and one joint and the two pipes are at each corner of your mouth and the joint is in the middle so it looks like two tusks and a trunk
